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An Easily Accessible Isoindigo-Based Polymer for High-Performance Polymer Solar Cells
Article in journal
Ergang Wang, Zaifei Ma, Zhen Zhang, Koen Vandewal, Patrik Henriksson, Olle Inganäs, Fengling Zhang, Mats R Andersson
Publication Year
Journal of the American Chemical Society, 2011, (133)36, 14244-14247
Link to Source (DOI)
<p>A new, low-band-gap alternating copolymer consisting of terthiophene and isoindigo has been designed and synthesized. Solar cells based on this polymer and PC(71)BM show a power conversion efficiency of 6.3%, which is a record for polymer solar cells based on a polymer with an optical band gap below 1.5 eV. This work demonstrates the great potential of isoindigo moieties as electron-deficient units for building donor-acceptor-type polymers for high-performance polymer solar cells.</p>